nl80211: Export available antennas

Export the information which antennas are available for configuration as TX or
RX antennas via nl80211.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 8d2f5f8d8080..9b62710891a2 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -605,6 +605,11 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
         if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
                 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
 
+        NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
+                    dev->wiphy.available_antennas_tx);
+        NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
+                    dev->wiphy.available_antennas_rx);
+
         if ((dev->wiphy.available_antennas_tx ||
              dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
                 u32 tx_ant = 0, rx_ant = 0;